All you have to do is pull up to the gas pump, exit your car and walk to the fuel door, and press it inward to trigger the release. The door will then pop open to reveal the gas cap. Unscrew the cap, and follow the instructions on the gas pump to fill your car with regular, 87-octane gasoline—the type of fuel Chrysler recommends for the 200 sedan. That’s all there is to it!
When you’re done refueling your car, take care you don’t forget to reattach the gas cap and push your fuel door closed again. An unsecured gas cap can let dirt or grime seep into your fuel tank, which can damage your fuel injectors over time.